Packet receiving and transmission system and method

A sending and receiving system and packet technology, applied in the field of network communication, can solve the problems of RTP packet loss, difficulty, UDP lack of feedback mechanism, etc.

Inactive Publication Date: 2008-04-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, UDP lacks a feedback mechanism. In the case of network congestion, RTP packets are easily lost randomly, thereby affecting voice quality
As shown in FIG. 1 , the sending end 10 transmits multiple voice packets to the receiving end 20 when the network is congested, and the voice packets 100b are continuously lost, so it is difficult to calculate the lost voice packets through the normal voice packets 100a 100b, thereby affecting the voice quality of VoIP

Method used

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  • Packet receiving and transmission system and method
  • Packet receiving and transmission system and method
  • Packet receiving and transmission system and method

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Embodiment Construction

[0016] Referring to FIG. 2 , it is a block diagram of an embodiment of the packet sending and receiving system of the present invention. In this embodiment, the packet transceiving system is located on a managed network, for example, a closed network owned by a carrier. The packet transceiving system includes a sending end 100 and a receiving end 200 . The sending end 100 and the receiving end 200 perform Voice over Internet Protocol (VoIP) communication.

[0017] In this embodiment, the sending end 100 transmits a plurality of preceding voice packets to the receiving end 200 . The receiver 200 receives a plurality of preceding voice packets, and detects network congestion. The sending end 100 then determines the packet discarding rate according to the network congestion condition, discards part of the voice packets to be transmitted evenly according to the packet discarding rate, and transmits the voice packets that have not been discarded. Then, the receiver 200 receives ...

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Abstract

The invention relates to a packet transmit-receive system, comprising a detection module, an abandoning rate determining module, a transmitting module and a reckoning module; wherein, the detection module is used for detecting the network choking condition. The abandoning rate module determining module is used for determining the packet abandoning rate according to network choking condition. According to the packet abandoning rate, the transmitting module is used for evenly abandoning one part of a plurality of voice packets which are to be transmitted and transmitting the voice packets which are not abandoned. The reckoning module is used for receiving the voice packets which are not abandoned and reckoning the voice packets which are abandoned. The invention also provides the packet transmit-receive method. The packet transmit-receive system and the method determine the packet abandoning rate according to the network choking condition, evenly abandon the voice packets according to the packet abandoning rate, hence can effectively reduce current the capacity of the network and can guarantee the voice quality of the network voice.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a packet sending and receiving system and method. Background technique [0002] Voice over Internet Protocol (VoIP) is an emerging voice transmission standard, which uses Realtime Transmission Protocol (Realtime Transmission Protocol, RTP) to transmit voice. RTP is based on User Datagram Protocol (UDP). [0003] However, UDP lacks a feedback mechanism. In the case of network congestion, RTP packets are easily lost randomly, thereby affecting voice quality. As shown in FIG. 1 , the sending end 10 transmits multiple voice packets to the receiving end 20 when the network is congested, and the voice packets 100b are continuously lost, so it is difficult to calculate the lost voice packets through the normal voice packets 100a 100b, thereby affecting the voice quality of VoIP. [0004] Therefore, how to effectively reduce the network traffic load and ensure the voice quality of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56H04M7/00H04L47/32
Inventor 连矩锋
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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